DE2024910A1 - Process for the production of shaped bodies for filtering and drying liquids and gases - Google Patents
Process for the production of shaped bodies for filtering and drying liquids and gasesInfo
- Publication number
- DE2024910A1 DE2024910A1 DE19702024910 DE2024910A DE2024910A1 DE 2024910 A1 DE2024910 A1 DE 2024910A1 DE 19702024910 DE19702024910 DE 19702024910 DE 2024910 A DE2024910 A DE 2024910A DE 2024910 A1 DE2024910 A1 DE 2024910A1
- Authority
- DE
- Germany
- Prior art keywords
- gases
- weight
- production
- drying
- filtering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 12
- 239000007788 liquid Substances 0.000 title claims description 9
- 239000007789 gas Substances 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000001914 filtration Methods 0.000 title claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000002274 desiccant Substances 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000011541 reaction mixture Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 230000000274 adsorptive effect Effects 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 229920001228 polyisocyanate Polymers 0.000 claims description 4
- 239000005056 polyisocyanate Substances 0.000 claims description 4
- 229920005862 polyol Polymers 0.000 claims description 4
- 150000003077 polyols Chemical class 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000011343 solid material Substances 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 239000002808 molecular sieve Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002694 phosphate binding agent Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/183—Physical conditioning without chemical treatment, e.g. drying, granulating, coating, irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28042—Shaped bodies; Monolithic structures
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/088—Removal of water or carbon dioxide from the reaction mixture or reaction components
- C08G18/0885—Removal of water or carbon dioxide from the reaction mixture or reaction components using additives, e.g. absorbing agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Polyurethanes Or Polyureas (AREA)
- Drying Of Gases (AREA)
- Filtering Materials (AREA)
- Treating Waste Gases (AREA)
Description
Kali-Chemie Hannover, den 10. Mai 1971Kali-Chemie Hanover, May 10, 1971
Aktiengesellschaft Pat. Dr. Ha/HpAktiengesellschaft Pat. Ha / Hp
PatentanmeldungPatent application
Verfahren zur Herstellung von Formkörpern zumProcess for the production of moldings for
Filtrieren und Trocknen von Flüssigkeiten und GasenFiltration and drying of liquids and gases
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Formkörpern, welche vielseitig bei der Filtration und Trocknung von Flüssigkeiten und Gasen Verwendung finden können.The invention relates to a process for the production of shaped bodies, which are versatile in the filtration and drying of Liquids and gases can be used.
In der nicht vorveröffentlichten Patentanmeldung P 19 34 030. 8-43 ist ein Verfahren zur Herstellung eines Trockenmittelformkörpers zum Filtrieren und Trocknen von Flüssigkeiten, einschließlich Kältemitteln, beschrieben, das dadurch gekennzeichnet ist, daß festes adsorptives Trockenmittel in Perlform oder in gekörnter Form mit einem Reaktionsgemisch, hergestellt aus Di- oder Polyisocyanat und einem Polyester- und/oder Polyätherpolyol, vermischt wird, wobei auf 100 g Trockenmittel etwa 0, 3 bis 5 g des Reaktionsgemisches eingesetzt werden, anschließend die Mischung in eine Form eingefüllt und bei einer Temperatur zwischen Raumtemperatur und 120 C unter Bildung eines Polyurethans gehärtet wird. Für die Herstellung des Polyurethans können die meisten der handelsüblichen Polyisocyanate und Polyole verwendet werden. Durch Zusatz geeigneter Beschleuniger kann die Reaktion so gesteuert werden, daß ßie inIn the unpublished patent application P 19 34 030. 8-43 is a process for the production of a desiccant shaped body for filtering and drying liquids, including refrigerants, described, which is characterized in that solid adsorptive desiccant in pearl form or in granular form with a reaction mixture, made of di- or polyisocyanate and a polyester and / or polyether polyol, is mixed, with on 100 g of desiccant about 0.3 to 5 g of the reaction mixture are used, then the mixture is poured into a mold and at a temperature between room temperature and 120 C below Formation of a polyurethane is cured. Most of the commercially available polyisocyanates can be used to produce the polyurethane and polyols can be used. By adding suitable accelerators, the reaction can be controlled so that ßie in
-2--2-
100*50/1751100 * 50/1751
wenigen Minuten beendet ist. Nach diesem Verfahren können aus den üblichen festen adsorptiven Trockenmitteln beliebiger Form, insbesondere aus aktivem Aluminiumoxid, Kieselsäuregel und/oder Molekularsieben geformte Körper mit guter Stabilität erhalten werden. Dieses ist darauf zurückzuführen, daß beim Härten keine Volumenkontraktion auftritt, die Anlaß zu Spannungen im fertigen Körper geben könnte. Die hohe Trockenwirkung beruht darauf, daß nur eine vorwiegend punktförmige Verbindung der einzelnen Teilchen stattfindet.a few minutes. According to this process, the usual solid adsorptive desiccants of any form, In particular, bodies formed from active aluminum oxide, silica gel and / or molecular sieves can be obtained with good stability. This is due to the fact that no volume contraction occurs during hardening, which gives rise to tension in the finished product Body could give. The high drying effect is based on the fact that only a predominantly punctiform connection of the individual Particle takes place.
Das vorliegende Verfahren zur Herstellung von Formkörpern zum Filtrieren und Trocknen von Flüssigkeiten und Gasen ist nun dadurch gekennzeichnet, daß Filter- und Adsorptionsmittel, wie Aktivkohle, Bentonit und/oder Quarzsand, gegebenenfalls zusammen mit festem adsorptivem Trockenmittel, mit einem Reaktionsgemisch, hergestellt aus Di- oder Polyisocyanat und einem Polyester- und/oder Polyätherpolyol, vermischt werden, wobei insgesamt auf 100 g festes Material etwa 0, 3 bis 5 g des Reaktionsgemisches eingesetzt werden, anschließend die Mischung in eine Form eingefüllt und bei einer Temperatur zwischen Raumtemperatur und 120 C unter Bildung eines Polyurethans gehärtet wird.The present process for the production of shaped bodies for filtering and drying liquids and gases is now characterized in that filter and adsorbents, such as activated carbon, bentonite and / or quartz sand, optionally together with solid adsorptive desiccant, with a reaction mixture, prepared from di- or polyisocyanate and a polyester and / or polyether polyol, are mixed, wherein a total of about 0.3 to 5 g of the reaction mixture per 100 g of solid material are used, then the mixture is poured into a mold and at a temperature between room temperature and is cured at 120 C to form a polyurethane.
Nach dem erfindungsgemäßen Verfahren können soncüt Formkörper mit verbesserten Filtereigenschaften hergestellt werden, indem man einen oder mehrere feste Stoffe mit überwiegend adsorptiver oder mechanischer Filterwirkung verwendet, wie beispielsweise die oben angeführten Verbindungen. Die Trockenwirkung dieser Körper kann, man verbessern, indem man sprbierende Materialien zusetzt, welche in der Hauptsache T rocken wirkung aufweisen, wie die bekannten Trockenmittel. Die Mengen tier einzelnen KomponentenAccording to the process according to the invention, shaped bodies with improved filter properties can be produced by using one or more solid substances with a predominantly adsorptive or mechanical filter effect, such as, for example, the compounds listed above. The drying effect of these bodies can be improved by adding spraying materials which mainly have drying effects, such as the known drying agents. The quantities of the individual components
202491Q202491Q
richten sich nach dem jeweiligen Einsatzgebiet der Formkörper. Da die Zusammensetzung der Gemische in weiten Grenzen variieren kann, lassen sich für den jeweilig gewünschten Zweck entsprechende Formkörper herstellen. Die Einsetzbarkeit solcher geformter Körper ist daher vielseitig.depend on the respective field of application of the molded body. Since the composition of the mixtures can vary within wide limits, appropriate ones can be used for the particular desired purpose Manufacture moldings. The applicability of such shaped bodies is therefore versatile.
Zur Herstellung der Formkörper werden beispielsweise die Gemische vor der Eingabe in die Form mit dem zu einem Polyurethan erhärtenden Reaktionsgemisch vermengt. Auf die Gesamtmenge der Feststoffe sind nicht mehr als 5 g Bindemittel pro 100 g Feststoff erforderlich.To produce the moldings, for example, the mixtures are mixed with the polyurethane that hardens to form a polyurethane before they are introduced into the mold Reaction mixture mixed. On the total amount of solids, no more than 5 g of binder per 100 g of solids are required.
Weiter wurde gefunden, daß auch Formkörper hergestellt werden können, in welchen die einzelnen Materialien schichtweise angeordnet sind. Zur Herstellung der Formkörper werden die einzelnen Komponenten vor der Eingabe in die Form mit dem zu einem Polyurethan erhärtenden Reaktionsgemisch vermengt und in der gewünschten Reihenfolge in die Form gegeben. Die Menge des eingesetzten Bindemittels für die einzelnen Komponenten wird dem jeweiligen Material angepaßt. Zwecks Erzielung einer ausreichenden mechanischen Festigkeit muß nur bei der aus Aktivkohle allein bestehenden Schicht die Menge an Bindemittel auf über 5 % erhöht werden, wobei je nach Körnung der Aktivkohle zwischen 10 und 20 Gewichtsprozent einzusetzen sind. Diese Bindemittelmenge läßt sich reduzieren, wenn der Aktivkohle Sand zugemischt wird.It has also been found that moldings can also be produced can, in which the individual materials are arranged in layers are. To produce the moldings, the individual components are mixed with a polyurethane before they are put into the mold the hardening reaction mixture and poured into the mold in the desired order. The amount of binder used for the individual components is adapted to the respective material. In order to achieve sufficient mechanical strength must only in the case of the layer consisting of activated carbon alone the amount of Binder can be increased to over 5%, depending on the grain size of the activated carbon between 10 and 20 percent by weight. These The amount of binder can be reduced if sand is added to the activated carbon will.
Bemerkenswert ist die nicht ohne weiteres voraussehbare hohe Bindekraft des erfindungsgemäßen Bindemittels, die sich darin äußert, daß nicht nur Formkörper aus einheitlichen Materialien, sondern auch beliebigen Gemischen hergestellt werden können. Darüber hinaus ist die gute Bindekraft der zu einem Polyurethan erhärtenden Reaktions-The not easily foreseeable high binding power is remarkable of the binder according to the invention, which is expressed in the fact that not only moldings made of uniform materials, but also any mixtures can be produced. In addition, the good binding force of the reaction material hardening to form a polyurethane
-4--4-
10 9850/175110 9850/1751
gemische daraus zu erkennen, daß bei der schichtweisen Anordnung der einzelnen Materialien die Festigkeit zwischen den einzelnen Schichten so groß ist; daß ein auch hohen mechanischen Anforderungen standhaltender Formkörper erhalten wird.Mixtures can be seen from this that in the layered arrangement of the individual materials the strength between the individual layers is so great; that withstanding high mechanical requirements Shaped body is obtained.
Ein Einsatzgebiet für solche konabinierten Formkörper liegt beispielsweise in der Kälteindustrie. Kältemittel in Kältemaschinen können neben Feuchtigkeit geringe Mengen an Säuren, gelösten Wachsen, Ölkohle, Ölschlamm und dgl. enthalten. Zur Beseitigung dieser Verunreinigungen wird u. a. Aktivkohle in lockerer Schüttung, eingeschlossen in einem Trocknergehäuse, neben den üblichen Trockenmitteln in den Kältemittelkreislauf eingesetzt. Gemäß dem Verfahren der USA-Patentschrift 3 407 617 hat man zwar schon den Versuch unternommen, Formkörper herzustellen, welche neben Trockenmitteln auch Aktivkohle enthalten; da aber die Trockenkapazität und Durchlässigkeit solcher Formkörper wegen der verhältnismäßig großen Bindemittelmengen gering ist (25 Gewichtsprozent Phosphatbinder oder synthetischer organischer Harzbinder werden auf ein Gemisch aus 55 Gewichtsprozent Trockenmittel und 20 Gewichtsprozent Aktivkohle benötigt), haben diese Formkörper keine wesentliche Bedeutung erlangt. Formkörper, welche nur aus Aktivkohle bestehen, lassen sich mit diesen Bindemitteln praktisch nicht herstellen, da sie mindestens die doppelte Menge derselben benötigen.One area of application for such concave shaped bodies is, for example in the refrigeration industry. In addition to moisture, refrigerants in refrigeration machines can contain small amounts of acids, dissolved waxes, oil carbon, Contain oil sludge and the like. To remove these impurities, inter alia. Activated charcoal in loose bulk, included in a dryer housing, used in addition to the usual desiccants in the refrigerant circuit. According to the method of the USA patent 3 407 617, an attempt has already been made to produce moldings which, in addition to desiccants, also contain activated carbon contain; but since the drying capacity and permeability of such moldings are low because of the relatively large amounts of binder is (25 percent by weight phosphate binder or synthetic organic Resin binders are required for a mixture of 55 percent by weight desiccant and 20 percent by weight activated carbon) Molded body has not acquired any significant importance. Shaped bodies which only consist of activated carbon can be made practical with these binders do not produce, as they need at least twice the amount of the same.
Natürlich können nach dem erfindungsgemäßen Verfahren auch Formkörper hergestellt werden, welche nur aus festen Stoffeamit mechanischer und adsorptiver Filterwirkung für Flüssigkeiten bestehen.Of course, molded bodies can also be used according to the process according to the invention which are only made of solid materials with mechanical and adsorptive filter effect for liquids.
Es ist üblich, die genannten Filter- und Trockenmaterialien auch für die Reinigung und Trocknung von Gasen, beispielsweise Luft oderIt is common to use the aforementioned filter and drying materials as well the cleaning and drying of gases, for example air or
-5--5-
109850/175-1109850 / 175-1
Verbrennungsgase,bzw. für die Adsorption von Lösungsmitteldämpfen einzusetzen. Auch hierbei kann der Einsatz der erfindungsgemäßen Formkörper vorteilhaft sein. Die Eignung von Formkörpern beispielsweise für die Reinigung und Trocknung von Luft ist aus Beispiel 1 zu ersehen.Combustion gases, or. to be used for the adsorption of solvent vapors. The use of the inventive Moldings be advantageous. The suitability of moldings, for example for the purification and drying of air can be seen from example 1.
100 Gewichtsteile eines Gemisches, bestehend aus 80 Gewichtsprozent perlförmigem Kieselsäuregel und 20 Gewichtsprozent Aktivkohle, wurden mit 2, 5 Gewichtsteilen eines aus einem Polyäther auf der Basis Trimethylolpropan mit einer Hydroxylzahl von ungefähr 520 und Diphenylmethan-4,4' -diisocyanat bestehenden Gemisches oberhalb des Festpunktes des Isocyanats vermischt und 30 Minuten bei 45 C gehärtet. Es wurde ein stabiler Formkörper erhalten, welcher eine gute Durchlässigkeit für Flüssigkeiten und Gase und eine gute Wasseraufnahmekapazität hatte.100 parts by weight of a mixture consisting of 80 percent by weight pearl-shaped silica gel and 20 percent by weight activated carbon, were mixed with 2.5 parts by weight of a polyether based Trimethylolpropane with a hydroxyl number of approximately 520 and diphenylmethane-4,4 ' -diisocyanate mixture above the fixed point of the isocyanate mixed and cured at 45 C for 30 minutes. A stable molded body was obtained which had good permeability for liquids and gases and a good water absorption capacity would have.
Die Wasseraufnahmekapazität des Formkörpers wurde durch Durchleiten von Luft mit verschiedener relativer Luftfeuchtigkeit bei 25 C geprüft. Bezogen auf die im Formkörper enthaltene Menge an Trocken mittel ergab sich folgende Wasseradsorption:The water absorption capacity of the shaped body was determined by passing it through tested by air with different relative humidity at 25 C. Based on the amount of dry matter contained in the molding medium resulted in the following water adsorption:
-6--6-
109850/1751109850/1751
100 Gewichtsteile eines Gemisches, bestehend aus 40 Gewichtsprozent perlförmigem Kieselsäuregel, 30 Gewichtsprozent eines Molekularsiebes, 10 Gewichtsprozent Quarzsand und 20 Gewichtsprozent Aktivkohle, wurden mit 2, 5 Gewichtsteilen eines aus einem Polyäther auf der Basis Trimethylolpropan mit einer Hydroxylzahl von ungefähr 520 und Diphenylmethan-4, 4' -diisocyanat bestehenden Gemisches oberhalb des Festpunktes des Isocyanats vermischt und 30 Minuten bei 45° C gehärtet. Es wurde ein stabiler Formkörper erhalten, welcher eine gute Durchlässigkeit für Flüssigkeiten und Gase und eine gute Wasseraufnahmekapazität hatte.100 parts by weight of a mixture consisting of 40 weight percent perlförmigem silica gel, 30 percent by weight of a molecular sieve, 10 percent by weight of silica sand and 20 weight percent activated charcoal, were incubated with 2, 5 parts by weight of a polyether based on trimethylolpropane having a hydroxyl number of about 520, and diphenylmethane-4, 4 ' -diisocyanate existing mixture mixed above the fixed point of the isocyanate and cured at 45 ° C for 30 minutes. A stable molded body was obtained which had good permeability for liquids and gases and a good water absorption capacity.
Zur Herstellung eines Schichtkörpers wurden jeweils 125 g perlförmiges Kieselsäuregel, 125 g eines Molekularsiebes, 125 g Quarzsand mit je 2 g des in Beispiel 2 beschriebenen Polyäther-Diisocyanat-Gemisches vermischt. Außerdem wurden 50 g Aktivkohle mit 10 g des gleichen Gemisches versetzt. Die einzelnen Gemische wurden in der genannten Reihenfolge in eine Form eingefüllt und bei 45 C 30 Minuten lang gehärtet. Umgerechnet auf die Gesamtmenge des Formkörpers betrug der Bindemittelanteil etwa 3, 8 Gewichtsprozent. Der Formkörper hatte eine gute Stabilität. Die Durchlässigkeit und Wasseraufnahmekapazität des Formkörpers war nicht wesentlich beeinträchtigt.To produce a layered body, 125 g of pearly silica gel, 125 g of a molecular sieve, 125 g of quartz sand were mixed with 2 g of the polyether-diisocyanate mixture described in Example 2 each. In addition, 10 g of the same mixture were added to 50 g of activated charcoal. The individual mixtures were poured into a mold in the order given and cured at 45 ° C. for 30 minutes. Converted to the total amount of the molding, the proportion of binder was about 3.8 percent by weight. The shaped body had good stability. The permeability and water absorption capacity of the shaped body were not significantly impaired.
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Claims (3)
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691934030 DE1934030B2 (en) | 1969-07-04 | 1969-07-04 | Process for the production of a desiccant molded body |
| DE2024910A DE2024910C3 (en) | 1969-07-04 | 1970-05-22 | Process for the production of molded articles by means of polyurethanes for filtering and drying liquids and gases |
| CH967670A CH512929A (en) | 1969-07-04 | 1970-06-25 | Process for the production of a shaped body for filtering and drying |
| BE752681D BE752681A (en) | 1969-07-04 | 1970-06-29 | MOLD BODIES FOR FILTRATION AND DRYING |
| ES381281A ES381281A1 (en) | 1969-07-04 | 1970-06-30 | Shaped body for filtering and drying of liquids and gases and process of making the same |
| US52122A US3687297A (en) | 1969-07-04 | 1970-07-02 | Shaped body for filtering and drying of liquids and gases and process of making the same |
| NL7009881A NL7009881A (en) | 1969-07-04 | 1970-07-03 | |
| AT602770A ATA602770A (en) | 1969-07-04 | 1970-07-03 | POROESE SHAPED BODIES, IN PARTICULAR FOR FILTERING AND DRYING GASES OR LIQUIDS AND FOR REFRIGERANTS |
| FR7024753A FR2054125A5 (en) | 1969-07-04 | 1970-07-03 | |
| GB3244970A GB1313348A (en) | 1969-07-04 | 1970-07-03 | Moulded body for filtering and drying |
| SE11136/70A SE359456B (en) | 1969-07-04 | 1970-08-14 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691934030 DE1934030B2 (en) | 1969-07-04 | 1969-07-04 | Process for the production of a desiccant molded body |
| DE2024910A DE2024910C3 (en) | 1969-07-04 | 1970-05-22 | Process for the production of molded articles by means of polyurethanes for filtering and drying liquids and gases |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2024910A1 true DE2024910A1 (en) | 1971-12-09 |
| DE2024910B2 DE2024910B2 (en) | 1973-04-26 |
| DE2024910C3 DE2024910C3 (en) | 1973-11-22 |
Family
ID=25757594
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691934030 Pending DE1934030B2 (en) | 1969-07-04 | 1969-07-04 | Process for the production of a desiccant molded body |
| DE2024910A Expired DE2024910C3 (en) | 1969-07-04 | 1970-05-22 | Process for the production of molded articles by means of polyurethanes for filtering and drying liquids and gases |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691934030 Pending DE1934030B2 (en) | 1969-07-04 | 1969-07-04 | Process for the production of a desiccant molded body |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3687297A (en) |
| AT (1) | ATA602770A (en) |
| BE (1) | BE752681A (en) |
| CH (1) | CH512929A (en) |
| DE (2) | DE1934030B2 (en) |
| ES (1) | ES381281A1 (en) |
| FR (1) | FR2054125A5 (en) |
| GB (1) | GB1313348A (en) |
| NL (1) | NL7009881A (en) |
| SE (1) | SE359456B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2208925A1 (en) * | 1972-12-05 | 1974-06-28 | Petroleo Brasileiro Sa | |
| EP0150747A3 (en) * | 1984-01-26 | 1985-08-28 | Bayer Ag | The use of hydrophilic, highly filled polyurethanes in biological waste water purification |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4066394A (en) * | 1974-12-30 | 1978-01-03 | Colgate-Palmolive | Reusable zeolite water softener for clothes washing |
| US4341539A (en) * | 1979-08-10 | 1982-07-27 | Dimitri Gidaspow | Thermally regenerative desiccant element |
| US4381929A (en) * | 1980-04-25 | 1983-05-03 | Nippon Soken, Inc. | Apparatus for adsorbing fuel vapor |
| US4664683A (en) * | 1984-04-25 | 1987-05-12 | Pall Corporation | Self-supporting structures containing immobilized carbon particles and method for forming same |
| US4675111A (en) * | 1984-07-16 | 1987-06-23 | Micro-Plate Inc. | Solution waste treatment module |
| DE3526181A1 (en) * | 1985-07-23 | 1987-02-05 | Bayer Ag | METHOD FOR REMOVING IMPURITIES FROM MIXTURES OF WATER WITH WATER MISCELABLE SOLVENTS |
| US4764282A (en) * | 1986-09-26 | 1988-08-16 | The Uniroyal Goodrich Tire Company | Disposal of toxic and polymeric wastes |
| US5332426A (en) * | 1992-07-29 | 1994-07-26 | Minnesota Mining And Manufacturing Company | Agglomerated activated carbon air filter |
| US5453118A (en) * | 1993-06-02 | 1995-09-26 | Ultra Pure Systems, Inc. | Carbon-filled fuel vapor filter system |
| SE515506C2 (en) * | 1994-06-17 | 2001-08-20 | Mhb Filtration Gmbh & Co Kg | Odor filter for ventilation outlet hoods |
| DE4442713C2 (en) * | 1994-12-01 | 1999-12-23 | Freudenberg Carl Fa | Adsorption air filter and process for its manufacture |
| US5871569A (en) * | 1996-10-15 | 1999-02-16 | Carrier Corporation | Filter material |
| US5879764A (en) * | 1996-11-06 | 1999-03-09 | W. R. Grace & Co.-Conn. | Desiccation using polymer-bound desiccant beads |
| CN1128650C (en) * | 1997-01-31 | 2003-11-26 | 高砂热学工业株式会社 | Air cleaning apparatus, filter and method of manufacturing the same |
| US6652629B2 (en) * | 2001-07-26 | 2003-11-25 | Helsa-Werk Helmut Sandler Gmbh & Co. Kg | Filter apparatus |
| US7077891B2 (en) * | 2002-08-13 | 2006-07-18 | Air Products And Chemicals, Inc. | Adsorbent sheet material for parallel passage contactors |
| US9339789B2 (en) | 2004-10-12 | 2016-05-17 | Multisorb Technologies, Inc. | Thermoset desiccant product and method for making same |
| US8853124B2 (en) * | 2005-01-21 | 2014-10-07 | Multisorb Technologies, Inc. | Resin bonded sorbent |
| US8097221B2 (en) * | 2005-01-21 | 2012-01-17 | Multisorb Technologies, Inc. | Lamp assembly |
| US7595278B2 (en) * | 2005-01-21 | 2009-09-29 | Multisorb Technologies, Inc. | Resin bonded sorbent |
| US7989388B2 (en) * | 2005-01-21 | 2011-08-02 | Multisorb Technologies, Inc. | Resin bonded sorbent |
| US20060166818A1 (en) * | 2005-01-21 | 2006-07-27 | Thomas Powers | Resin bonded sorbent |
| EP2384432B1 (en) | 2007-06-21 | 2016-12-28 | Gen-Probe Incorporated | Instrument and receptacles for performing processes |
| WO2010080251A1 (en) | 2008-12-18 | 2010-07-15 | 3M Innovative Properties Company | Filter element utilizing shaped particle-containing nonwoven web |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235089A (en) * | 1960-06-30 | 1966-02-15 | Star Porcelain Company | Composite adsorbent filter body |
| US3025233A (en) * | 1961-11-03 | 1962-03-13 | Briggs Filtration Co | Filter |
| GB1078750A (en) * | 1964-10-22 | 1967-08-09 | Lorillard Co P | Method of and apparatus for making cigarette filters |
| US3347391A (en) * | 1964-10-29 | 1967-10-17 | Owens Corning Fiberglass Corp | Filter cartridge and method of making the same |
| US3538020A (en) * | 1966-09-23 | 1970-11-03 | Kata Mfg & Filtering Co The | Fluid purification device containing a cartridge of polymer entrapped aggregate particles |
| US3545622A (en) * | 1967-07-27 | 1970-12-08 | Alco Controls Corp | Permeable filter and drier block |
-
1969
- 1969-07-04 DE DE19691934030 patent/DE1934030B2/en active Pending
-
1970
- 1970-05-22 DE DE2024910A patent/DE2024910C3/en not_active Expired
- 1970-06-25 CH CH967670A patent/CH512929A/en not_active IP Right Cessation
- 1970-06-29 BE BE752681D patent/BE752681A/en unknown
- 1970-06-30 ES ES381281A patent/ES381281A1/en not_active Expired
- 1970-07-02 US US52122A patent/US3687297A/en not_active Expired - Lifetime
- 1970-07-03 NL NL7009881A patent/NL7009881A/xx unknown
- 1970-07-03 AT AT602770A patent/ATA602770A/en not_active Application Discontinuation
- 1970-07-03 GB GB3244970A patent/GB1313348A/en not_active Expired
- 1970-07-03 FR FR7024753A patent/FR2054125A5/fr not_active Expired
- 1970-08-14 SE SE11136/70A patent/SE359456B/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2208925A1 (en) * | 1972-12-05 | 1974-06-28 | Petroleo Brasileiro Sa | |
| EP0150747A3 (en) * | 1984-01-26 | 1985-08-28 | Bayer Ag | The use of hydrophilic, highly filled polyurethanes in biological waste water purification |
Also Published As
| Publication number | Publication date |
|---|---|
| SE359456B (en) | 1973-09-03 |
| NL7009881A (en) | 1971-01-06 |
| ES381281A1 (en) | 1972-11-16 |
| DE2024910B2 (en) | 1973-04-26 |
| GB1313348A (en) | 1973-04-11 |
| DE2024910C3 (en) | 1973-11-22 |
| BE752681A (en) | 1970-12-01 |
| DE1934030A1 (en) | 1971-02-04 |
| CH512929A (en) | 1971-09-30 |
| DE1934030B2 (en) | 1971-02-04 |
| ATA602770A (en) | 1979-04-15 |
| US3687297A (en) | 1972-08-29 |
| FR2054125A5 (en) | 1971-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) |